Generate XML file in Cakephp

Steps to Generate XML file using CakePHP:

Step-1 Enable to parse xml extension in config route.php file.
    Router::parseExtensions('xml');
Step-2 Add Request Handler Component to the Controller
   var $components = array(‘RequestHandler’);
Step-3 Add controller Action For XML Generation in Post Controller
    function generateXMLFile()
    {
        if ($this->RequestHandler->isXml()) { // check request type
            $this->layout = 'empty'; // create an empty layout in app/views/layouts/empty.ctp   
         }   
    }
 Add header code in empty layout
<?php header('Content-type: text/xml');?>
<?php echo $this->Xml->header(); ?>
<?php echo $content_for_layout; ?>

Step-4 Set up View To generate XML
Create xml folder inside Posts view and file name is generateXMLFile.ctp
"view/Posts/xml/generateXMLFile.ctp"
<response>
       <posts>
              <Post>
                     <id>test 234</id>
              </Post>
       </posts>
</response>

 Step-5 Set action request by HTML Helper
 <?php echo $this->Html->link( __('Generate XML', true), array('action'=>'generateXMLFile','ext'=>'xml'),
array('class'=>'button','target'=>'_blank') ); ?>